by Scott, F.W, Geissinger, C.M
Published in American journal of veterinary research (01.05.1999)

by Horst, R.K, Geissinger, C.M, Staszewicz, M
Published in Acta horticulturae (01.05.1974)

by Gillespie, J.H, Scott, F.W, Geissinger, C.M, Czarniecki, C.W, Scialli, V.T
Published in Journal of clinical microbiology (01.08.1986)

by Ben Jaacov, J, Horst, R.K, Geissinger, C.M, Dimock, A.W, Langhans, R.W
Published in Phytopathology (1973)